RoverGauge Idle Mode

[chris52]

Hi Guys I am still having some issues with the cars idle after rebuilding the engine. For some reason the car is not going into Idle Mode

Above is a screenshot as you can see the throttle pot is fine MAF is fine the idle control valve is low but I have checked its operation and its all working correctly. So I'm guessing its the speed sensor The speedo is working correctly how do I test if the ECU is getting the signal showing the car is not moving?
Any help would be appreciated.
Chris

[chris52]

Thanks Mark I thought the green light should be illuminated if it was in idle mode. The stepper Motor is working correctly as you say if I close it manually it brings the idle down to nearly stalling and if I open it the rpm moves up. The problem is that the stepper is not adjusting automatically hence why I presumed it was not in idle mode. Could you confirm that I have the throttle pot set correctly that it is set at corrected not absolute. Everything else seems to be working perfectly.
Cheers Chris

[chris52]

Many thanks for all the help will get it sorted this coming weekend.
Chris

[chris52]

davep said:

Chris, your screen shot shows RoverGauge has a communications error:

Communications: The green lamp is lit when the software is successfully reading data from the ECU, and the red lamp is lit when there was a problem communicating with the ECU (caused by a bad connection, disconnected cable, misconfigured USB adapter, or other problem.) Both lamps will be off if there has not been any attempt to read from the ECU.

I'd attend to this first as the data exchange could be corrupted.

Cheers only reason it shows that is because I unplugged the cable before I took the screenshot but well spotted anyway.

[chris52]

davep said:

Chris, is the Idle Mode lamp Off with the test cable connected and engine running?

Yes it is
Cheers Chris

[chris52]

Yes the car has a Mark Adams Chip so not standard.
Will get it all sorted this weekend.

Thanks again everyone for the help and advice.

[chris52]

Quick update
Sorted the throttle pot as pointed out and the car is now running sweet nice steady idle and no fault codes
Happy days
Chris